EPITHELIAL ATYPIA AND SQUAMOUS METAPLASIA IN NASAL POLYPS

Fifteen routine nasal polypectomy specimens submitted to our laborator y over an eight-month period were noted to show marked atypia within a reas of squamous metaplasia to a degree suggestive of dysplasia. Revie wing the literature revealed little published work in this area, espec ially recently. Further nasal polyp cases from this, and a similar pre vious time period, were re-examined, and possible causes for these cha nges discussed.